<?php

class UserController extends Controller
{
	/**
	 * @var string the default layout for the views. Defaults to '//layouts/column2', meaning
	 * using two-column layout. See 'protected/views/layouts/column2.php'.
	 */
	public $layout='//layouts/column2';
	/**
	 * @return array action filters
	 */
	public function filters()
	{
		return array(
			'accessControl', // perform access control for CRUD operations
		);
	}
	/**
	 * Specifies the access control rules.
	 * This method is used by the 'accessControl' filter.
	 * @return array access control rules
	 */
	public function accessRules()
	{
		return array(
			 array('allow', // allow authenticated user to perform 'create' and 'update' actions
                'actions'=>array('view','update','admin','create','delete'),
                'users'=>array('@'),
            ),
			array('deny',  // deny all users
				'users'=>array('*'),
			),
		);
	}
	/**
	 * Displays a particular model.
	 * @param integer $id the ID of the model to be displayed
	 */
	public function actionView($id)
	{
		if(!Yii::app()->user->checkAccess('readUser'))
		{
			throw new CHttpException(403,'Bạn không có quyền hạn truy cập trang này.');
		}
		$user = $this->loadModel($id);
		$user->password = $this->hidePassword($user->password);
		$this->render('view',array(
			'model'=>$user,
		));
	}


	/**
	 * Creates a new model.
	 * If creation is successful, the browser will be redirected to the 'view' page.
	 */
	public function actionCreate()
	{
		if(!Yii::app()->user->checkAccess('createUser'))
		{
			throw new CHttpException(403,'Bạn không có quyền hạn truy cập trang này.');
		}
		$model=new User;

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if(isset($_POST['User']))
		{
			$model->attributes=$_POST['User'];
			if ($model->validate()){    
				$model->encryptPassword();
				if($model->save(false)){
					// assign a role to the new user
					$auth=Yii::app()->authManager;
					$role='';
					switch ($model->user_type_id){
						case 1:
							$role='clerk';
							break;
						case 2:
							$role='manager';
							break;
					}
					$auth->assign($role, $model->id);
					$this->redirect(array('view','id'=>$model->id));
				}
			}
				
		}

		$this->render('create',array(
			'model'=>$model,
		));
	}

	/**
	 * Updates a particular model.
	 * If update is successful, the browser will be redirected to the 'view' page.
	 * @param integer $id the ID of the model to be updated
	 */
	public function actionUpdate($id)
	{
		if(!Yii::app()->user->checkAccess('updateUser'))
		{
			throw new CHttpException(403,'Bạn không có quyền hạn truy cập trang này.');
		}
		$model=$this->loadModel($id);
		if(!isset($_POST['User']))
		{
			$model->password='';
		}
		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);
		if(isset($_POST['User']))
		{
			$model->attributes=$_POST['User'];
			if ($model->validate()){    
				$model->encryptPassword();
				if($model->save(false)){
					// re-assign new role for the u
					$auth=Yii::app()->authManager;
					$role='';
					switch ($model->user_type_id){
						case 1:
							$role='clerk';
							break;
						case 2:
							$role='manager';
							break;
					}
					$auth->revoke('clerk', $model->id);
					$auth->revoke('manager', $model->id);
					$auth->assign($role, $model->id);
					// update user's fullname in session
					$this->redirect(array('view','id'=>$model->id));
				}
			}
		}

		$this->render('update',array(
			'model'=>$model,
		));
	}

	/**
	 * Deletes a particular model.
	 * If deletion is successful, the browser will be redirected to the 'admin' page.
	 * @param integer $id the ID of the model to be deleted
	 */
	public function actionDelete($id)
	{
		if(!Yii::app()->user->checkAccess('deleteUser'))
		{
			throw new CHttpException(403,'Bạn không có quyền hạn truy cập trang này.');
		}
		
		if(Yii::app()->request->isPostRequest)
		{
			// we only allow deletion via POST request
			$model = $this->loadModel($id)->deleteEx();
			// if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
			if(!isset($_GET['ajax']))
				$this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
		}
		else
			throw new CHttpException(400,'Invalid request. Please do not repeat this request again.');
	}



	/**
	 * Manages all models.
	 */
	public function actionAdmin()
	{
		if(!Yii::app()->user->checkAccess('readUser'))
		{
			throw new CHttpException(403,'Bạn không có quyền hạn truy cập trang này.');
		}
		$model=new User('search');
		$model->unsetAttributes();  // clear any default values
		if(isset($_GET['User']))
			$model->attributes=$_GET['User'];
		$this->render('admin',array(
			'model'=>$model,
		));
	}

	/**
	 * Returns the data model based on the primary key given in the GET variable.
	 * If the data model is not found, an HTTP exception will be raised.
	 * @param integer the ID of the model to be loaded
	 */
	public function loadModel($id)
	{
		$model=User::model()->findByPk($id);
		if($model===null)
			throw new CHttpException(404,'The requested page does not exist.');
		$userType=UserType::model()->findByPk($model->user_type_id);
		$model->user_type_name = $userType->name;
		
		return $model;
	}

	/**
	 * Performs the AJAX validation.
	 * @param CModel the model to be validated
	 */
	protected function performAjaxValidation($model)
	{
		if(isset($_POST['ajax']) && $_POST['ajax']==='user-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}
	private function hidePassword($password){
		$new_password = "";
		for($i = 0; $i < strlen($password); $i++)
		{
			$new_password = $new_password."*";	
		}
		return $new_password;
	}
}
